As the first choice for 400G optical module packaging, QSFP-DD can effectively expand the cloud capacity of data centers and meet the growing bandwidth needs of hyperscale data centers. In the previous article, we introduced the 400G QSFP-DD FR4 optical module. In this article, Yingda brings you a long-distance transmission solution commonly used in hyperscale data centers – 400G QSFP-DD LR8.
400G QSFP-DD LR8 optical module features
400G QSFP-DD LR8 is an 8-channel full-duplex transceiver module, which adopts hot-swappable QSFP-DD package, with a rate of up to 425Gbps, in line with QSFP-DD MSA and IEEE 802.3bs 400GBASE-LR8 Ethernet standards, dual LC interface, central wavelength of 1310nm, operating temperature range of 0~70℃, under the premise of FEC in the system, the transmission distance through single-mode optical fiber can reach up to 10km, the maximum power consumption is less than 12.5W, and it meets RoHS environmental protection standards.
Working Principle
DML lasers with 8 LWDM wavelengths (5nm wavelength interval, TEC cooler is required to control temperature) can achieve a single-wave rate of 106.25Gbps based on the PAM4 modulation format, and are coupled into an SMF for transmission through MUX, achieving 425Gbps data interconnection within 10km.
Application
400G QSFP-DD LR8 fiber optic products has excellent performance and uses direct modulated laser (DML) transmitter technology to provide low-power, low-risk, cost-effective solutions for 400G, mainly used in data centers and telecommunications networks.
In addition to optical modules that can achieve 400G high-speed transmission, Yingda can also provide 400G QSFP-DD LR8 AOC cable, which can achieve data exchange and transmission more efficiently and quickly, and help the development of the next generation of data centers.
400g qsfp dd to qsfp dd active optical cable, 4 channel full duplex multimode cable
